Vega VEGAPULS 62 Quick Setup Manual - page 13
13
5SetupwiththedisplayandadjustmentmodulePLICSCOM
VEGAPULS 62 • 4 … 20 mA/HART - two-wire
51872-EN-160620
100%
0%
0,5 m (19.68
")
5 m
(196.9
")
2
1
3
Fig. 8: Parameter adjustment example min./max. adjustment
1 Min. level = max. measuring distance
2 Max. level = min. measuring distance
3 Reference plane
For this adjustment, the distance is entered when the vessel is full
and nearly empty. If these values are not known, an adjustment with
otherdistances,forexample,10%and90%isalsopossible.Starting
pointforthesedistancespecificationsisalwaysthesealsurfaceof
thethreadorflange.
The actual product level during this adjustment is not important,
becausethemin./max.adjustmentisalwayscarriedoutwithout
changing the product level. These settings can be made ahead of
time without the instrument having to be installed.
High sockets or vessel installations, such as e. g. struts or agitators as
well as buildup and weld joints on the vessel walls, cause interfering
reflectionswhichcanimpairthemeasurement.Afalseechostorage
detects and marks these false echoes, so that they are no longer
taken into account for the level measurement. A false echo memory
shouldbecreatedwithlowlevelsothatallpotentialinterferingreflec-
tions can be detected.
False signal suppression
Change now?
Proceed as follows:
1. Movefromthemeasuredvaluedisplaytothemainmenuby
pushing [OK].
2. Select the menu item "Service" with [->]andconfirmwith[OK].
Now the menu item "False signal suppression" is displayed.
Service - False signal
suppression